package com.forum.ajax.homepage;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.json.JSONException;
import org.json.JSONObject;

import com.forum.domain.Ucu;
import com.forum.domain.UcuDAO;
import com.forum.domain.User;
import com.forum.domain.UserDAO;

public class GetConcernUser extends HttpServlet {
	
	private final int EACH = 1;
	private final int ONESIDE = 0;

	/**
	 * Constructor of the object.
	 */
	public GetConcernUser() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset = utf-8");
		PrintWriter out = response.getWriter();

		JSONObject json = new JSONObject();

		String str_id = (String) request.getParameter("id");
		int id = Integer.parseInt(str_id);
		UserDAO ud = new UserDAO();
		User screen_user = ud.findById(id);

		UcuDAO ucd = new UcuDAO();
		List<Ucu> userlist = ucd.findByProperty("userByUserid", screen_user);
		
		int followtype = -1;

		try {
			json.accumulate("count", userlist.size());

			for (int i = 0; i < userlist.size(); i++) {
				User following_user = userlist.get(i).getUserByFollowingid();
				Integer following_id = following_user.getUserid();
				String nickname = following_user.getNickname();
				String realname = following_user.getRealname();
				String intro = following_user.getIntroduction();
				String email = following_user.getEmail();
				
				followtype = ONESIDE;
				
				//get the following person's following list
				List<Ucu> fpersonlist = ucd.findByProperty("userByUserid", following_id);
				for(int j = 0 ; j < fpersonlist.size() ; j++)
				{
					if(screen_user == fpersonlist.get(j).getUserByFollowingid())
					{
						followtype = EACH;
						break;
					}
				}
				
				JSONObject userjson = new JSONObject();
				
				userjson.accumulate("id", following_id);
				userjson.accumulate("nickname", nickname);
				userjson.accumulate("realname", realname);
				userjson.accumulate("intro", intro);
				userjson.accumulate("email", email);
				userjson.accumulate("type",followtype);
				json.append("user", userjson);
			}
			
			out.print(json);

		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
